DEC 06, 2019 7:21 AM PST

Study finds association between hair products and breast cancer risk

WRITTEN BY: Tiffany Dazet

For many women, hair color and style are significant components of their identity. However, troubling information from a new study about the use of hair dye and chemical straighteners may have some women rethinking their usage.

Researchers from the National Institute of Environmental Health Sciences (NIEHS) aimed to determine if hair care products had any association with the development of breast cancer. According to the study, published in the International Journal of Cancer earlier this week, hair care products can contain endocrine-disrupting chemicals related to breast cancer. Additionally, these products used by black women may contain higher levels of “hormonally active compounds.” The news clip below provides a brief summary of this study.

To examine the level of risk associated with the use of these hair care products, researchers used data from the Sister Study—another NIH study that tracks the health of women whose sister had breast cancer. From the Sister Study, researchers used data from about 46,700 participants aged 35 to 74 regarding the past 12-months of hair product use. Initially, about 55% of the participants reported using permanent dye.

During the follow-up period to this study, nearly 2,800 of the participants developed breast cancer. NIH reports that for black women, the usage of permanent dye every five to eight weeks was associated with a 60% increased risk of breast cancer. For white women, this risk is 8%. Semi-permanent or temporary dye had little to no increase in breast cancer risk.

The study also reports an association between chemical hair straightener use and breast cancer—women who used these products every five to eight weeks had a 30% increased risk of breast cancer.

As reported in the video above, this study does not examine the risk associated with the use of these products for women with the BRCA gene or those at average risk of breast cancer. In an article from NIEHS, co-author and NIEHS Epidemiology Branch chief Dale Sandler, Ph.D., stated, “we are exposed to many things that could potentially contribute to breast cancer, and it is unlikely that any single factor explains a woman’s risk. While it is too early to make a firm recommendation, avoiding these chemicals might be one more thing women can do to reduce their risk of breast cancer.”

Sources: NIH, IJC

About the Author
  • Tiffany grew up in Southern California, where she attended San Diego State University. She graduated with a degree in Biology with a marine emphasis, thanks to her love of the ocean and wildlife. With 13 years of science writing under her belt, she now works as a freelance writer in the Pacific Northwest.
You May Also Like
JUL 14, 2020
Health & Medicine
Sick Children and Cannabis: A Hospital Offers a Lifeline to Parents
JUL 14, 2020
Sick Children and Cannabis: A Hospital Offers a Lifeline to Parents
A new report in the journal Pediatrics gets the conversation going on a much under-reported area: sick children being ad ...
JUL 18, 2020
Cardiology
Diagnosing Arterial Stenosis with Computational Modeling
JUL 18, 2020
Diagnosing Arterial Stenosis with Computational Modeling
Our understanding of cardiovascular health has increased by leaps and bounds. One of the few issues that lag behind the ...
JUL 21, 2020
Health & Medicine
FDA Produces Draft Guidelines on Developing Cannabis Drugs
JUL 21, 2020
FDA Produces Draft Guidelines on Developing Cannabis Drugs
The FDA’s Center for Drug Evaluation and Research has produced guidelines for research into cannabis-related ingre ...
JUL 22, 2020
Microbiology
Tiny, Parasitic Bacteria Can Find a Home in the Human Mouth
JUL 22, 2020
Tiny, Parasitic Bacteria Can Find a Home in the Human Mouth
Some microbes that live in environments as diverse as groundwater and moose have also been found in the human mouth.
JUL 30, 2020
Cardiology
Protecting the Heart Against Cardiotoxicity
JUL 30, 2020
Protecting the Heart Against Cardiotoxicity
Doxorubicin is a potent chemotherapy drug used for many different cancers. Unfortunately, like all chemotherapies, doxor ...
AUG 02, 2020
Cell & Molecular Biology
'Wasabi' Receptor Can Detect Many Irritants
AUG 02, 2020
'Wasabi' Receptor Can Detect Many Irritants
We're often exposed to irritants as mild as garlic or horseradish and as serious as smoke, which trigger a protective re ...
Loading Comments...